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Wyszukujesz frazę "Acharya, G. D." wg kryterium: Autor


Wyświetlanie 1-2 z 2
Tytuł:
Evaluate Sulphur Diffusion at Mould-Metal Interface in No- Bake Mould System
Autorzy:
Sheladiya, M. V.
Acharya, S. G.
Mehta, K.
Acharya, G. D.
Powiązania:
https://bibliotekanauki.pl/articles/381595.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
foundry industries
no-bake technology
mould-metal interface
furan resin
sulphur diffusion
przemysł odlewniczy
technologia bez pieca
żywica furanowa
dyfuzja
Opis:
Casting process takes a major percentage of manufacturing products into consideration. No-bake casting is swiftly developing technology for foundry industries. In the no-bake family, furan no-bake casting process employs resins and acid catalyst to form a furan binder system. However, this process configures castings with augmented strength and quality surface finish. Compressive strength, transverse strength and tensile strength of moulds are also high in this furan binder system. Hence this method is apt for producing accurately dimensioned castings. Our well thought-out deliberations in the subsequent write up entail the numerous effects of variation of resin and acid catalyst on the surface defect i.e. sulfur diffusion on the surface of FNB casting. Furan resin; used in the production of casting is furfuryl alcohol and acid catalyst is sulphonic acid. Sulfur diffusion is tested by Energy-dispersive X-ray spectroscopy (EDX) analysis and also by the spectrometer with jet stream technology. This paper also comprises economic advantages of optimizing resin because furan resin is expensive and catalyst with reduction of sulfur diffusion defect as it saves machining, labor cost, and energy.
Źródło:
Archives of Foundry Engineering; 2019, 1; 63-70
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of Critical Parameters for Sand Inclusion Defect in FNB Casting
Autorzy:
Acharya, S. G.
Vadher, J. A.
Kothari, K. D.
Powiązania:
https://bibliotekanauki.pl/articles/381036.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
casting
evaluation of parameters
furan
grain fineness number
loss of ignition
pH
odlewnictwo
ocena parametrów
ziarno
Opis:
Casting covers major area of production all over the world. Resin bonded casting is widely used in today’s manufacturing industries. Furan No bake casting is most widely accepted in Indian foundries due to its excellent surface finish and dimensional stability. It is a self-setting binder and it has a lower work and strip times. Though the casting process is also known as process of uncertainty, in the present study, an attempt has been made to investigate the effect of Grain Fineness Number, Loss of Ignition, Potential of Hydrogen, % of Resin with respect to sand, Sand Temperature and Compressive strength of the mould on Sand Inclusion defect – one of the most dominating defect in the Krislur Castomech Pvt. Ltd. Industry situated at Bhavnagar, Gujarat, India. The experiments were conducted based on response surface methodology (RSM) and sequential approach using face centered central composite design. The results show that quadratic model with removal of some insignificant term is comparatively best fits for Sand Inclusion Defect.
Źródło:
Archives of Foundry Engineering; 2017, 17, 1; 5-12
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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